Slotting-machine.



No. 682,65l. Patented Sept. l7, I90l.

T. M. TRIPP & P. I. & H. D-. JACDBSUN.

SLOTTING MACHINE.

(Applica tion filed Nov. 26, 1900.) (No Model.) 4 Sheets-Sheet l,

m: uonms PETERS co. vnonxumo msmncfou. q. 1:

No. 682,65l. Patented Sept. I7, l90l. T. M. TRIPP & P. I. & H. D. JACOBSON.

' SLOTTING MACHINE.

' (Application filed Nov. 26, 1900.) .0

(No Model.) 4 Sheets-Sheet 2.

Alrtorney'.

"me NORR IS PETERS ca. ruofouma. WASHINGTON. n. c.

No. 682,65l. Patented Sept. l7, l90l. T. M. TRIPP & P. I. & H. D. JACOB SUN.

SLOTTING MACHINE. [Application filed Nov. 26, 1900.;-

4 Sheets-Sheet 3.

(No Model.)

I \zg tmia 33m N0. 682,651. Patented Sept. 17, I90I. T. M. TRIPP & P. l. 8. H. D. JACOBSON.

SLOTTING MACHINE.

(Application filed Nov. 26, 1900.)

4 Sheets-Shoat 4.

(No Model.) 7

J I \ZE llElI E 5 .9.

At 'o nev UNITED STATES:

PATENT OFFICE.

AND HARRY DOBSON JACOBSON, OF LIVERPOOL, ENGLAND.

SLOTTlNG-MACHINE.

SPECIFICATION forming part of Letters Patent No. 682,651, dated September 17, 1901. Application filed November 26 1300. Serial No. 37,785- (No model.)

To 61% whom it may concern.-

of Great Britain, have invented a new and useful Improvement in Slotting-Machines, of o which the following is a specification.

Ourinvention relates to slotting-machines, and is more especially adapted to cut slots in cardboard'for instance, in blanks to be used 3 Itis? outside cutters are double or knife-edged, 65 i whereas the inside cutters 9 are single and in the manufacture of cardboard boxes. I also adapted to slot thin sheet metal, leathe or other analogous substance.

The object of our invention is to providea i machine which will work by power at a very high rate of speed and which acts in a rotary 2o direction and the cutting edges whereof will retain their keenness for a long time.

In the manufacture of cardboard boxes the slots are generally required to extend from the edge of the blank at right angles thereto, and our machine is well adapted to out such slots, the length thereof and their distance apart being readily adjusted. A large range of sizes may be out without removing the cutters from the machine. In

0 some cases slots entirely surrounded by solid material are required, and our machine will also readily out these, the inside cutters, hereinafter described, being modified accordingly.

5 Our invention has further for its object to combine these slotting devices with a machine well known in the art and termed a rotary cutting and scoring machine and to gear the various parts together and to actuate 4:) them from one source of power, so as to combine them into one single machine, whereby the cutting, scoring, and slotting may be effected at one operation without manual interference.

In the drawings, Figure 1 is a side elevation of ourimproved slotting-machine. Fig. 2 is a plan of Fig. 1. Fig. 3 is a section on line at w of Fig. 2. Fig. 1 is an end view. Fig.

5 is a section showing the combined cutting and scoring and slotting machine. Parts are omitted from Figs. 1 and 2 for the sake of Be it known that \ve,THoMAs MUNDY TRIPP, residing at 24: Berkley street, PERCY ISIDORE JACOBSON, residing at 195 Upper Parliament? 5 street, and HARRY DOBSON J AooBsoN, resid-. ing at 13 Hope street, Liverpool, in the county of Lancaster, England, subjects of'the Queen 1 clearness.

Like nu merals refer to corresponding parts. Referring first more particularly to Figs. 1 to 4, 1 is the bed-plate of the machine, on 5 5 which are affixed standards 2, in which shafts 3 and 4 are journaled. These shafts are geared together by spur-wheels 5 and 6, and the shaft 3 carries fast and loose pulleys 7 and and '8v to receive a driving-belt. The shaft 3 carries a number of cutters 9, hereinafter termed .the inside cutters to distinguish them from the double or outside cutters 10, whichare carried by the lower shaft 4. The

square-edged, and the latter may be of about one-sixteenth of an inch thick,more or less, according to the width of the slot to be cut with which they correspond. The double cutters 7o 10 are circular-that is to say, the whole of their peripheries form cutting edges-and while the inside cutters 9 are circular in general contour only a portion of their peripheries is sufficiently extended radially to form the actual cutting-blade 11. Feathers 12 on the cutters 9 and 10 engage corresponding slots inthe s'hafts3 and 4: and while allowing lateral adjustment prevent relative rotation. Thelateral'position of the cutters 9 and 10 is maintained by set-screws13. A table 1-1 is provided upon which the blanks are piled, and they are retained at back by fences 15, carried on across-bar 16. One side of the blanks rests against a fixed fence 17, Whilea movable fence 18, adjustable along a slot 19, retains the other side. An eccentric 20 is mounted on and revolves with the lower shaft 4, and its rod 21 oscillates a lever 22, attached to a spindle 23, which is carried in 0 lugs 24 on base-plate 1. A feed-bar 25, connected to spindle 23 by links 26 27, travels to and fro over the surface of table 14 when the machine is in action. The angular position of eccentric 20 on shaft 4 may be varied at will, so that the moment of commencing the feeding of the blanks relative to the rotary position of the blades 11 may be adjusted .and the length of slot thus determined as desired. A set-screw 38 is used to clamp ec- 10o ential position of the inside cutters.

centric 20 on shaft 4. A series of guidesQB, mounted on a cross-bar 29, serves to direct the course of the issuing blanks when they leave the cutters. Pickers 30, supported on bearer 31 and which are maintained in place by spring 32, (see Fig. 3,) remove the cut-out portions from between thedouble cutters 1 0.

The spring 32 allows the pickers to rock slightly to follow any slight irregularities in the cutters.

lVe have shown three sets of cutters 9 and 10 in operation to cut blanks fed from the fences 17 18 and two other sets at the lefth hand side of the drawings which may be brought into operation, if desired, by being slid along the shafts 3 and 4:. As shown, the machine cuts three equidistant slots, and by using the additional cutters also it will cut five slots. We do not confine ourselves to any particular number or pitch of slots. A scale on eccentric 10 and a pointer or arrow on the end of shaft 4: (see Fig. 4) serve to show the length of slot which will be cut for any setting of the eccentric. To cut a short slot, the parts are so adjusted that the feed takes place when most of the cutting-blade 11 has passed the line of feed, while to cut a longer slot the position of eccentric 10 is so varied that the feed takes place earlier. It will be seen that when the rear end of blade 11 reaches the cardboard the slot stops oifshort.

An important advantage of our invention is that slots of various lengths may be cut with the same cutters by altering the time of feeding the blanks relative to the circumfer- Moreover, should it be desired to cut slotsfrom the edge of the blank which are too long to be out by any particular inside cutter it may be replaced by another cutter having a longer blade 11. In addition, where short slots are to be cut entirely surrounded by solid material it is only necessary to exchange the inside cutters with long blades 11 for inside cutters having shorter blades 11 (see Fig. 5) of the desired length. In any and all of these cases the outside cutters are used without changethat is, their whole circumference is adapted to cut.--When meshing with the inside cutters. It is thus possible with our machine to out slots of varying length, either open at one end or closed all around, without changing the outside cutters.

Referring to-the modification shown in Fig. 5, when it is desired to cut, score, and slot the material at one operation we mount the rotary devices all in one framework 33. 3 t show the upper and lower shafts hereinbefore described, and 9 and 10 the inside and outside cutters, respectively. 33 shows the rotary cuttersfor dividing the cardboard, 34 the rotary scorers, and: 35 are feed-rolls, all of which are well known. The various shafts are geared together by spur-wheels, (indicated by chain-dotted lines 36.) The table 14 is elongatedandslotted, as shown, to admit the cutters, scorers, and slotters, and the material may be fed into either end of. the combined machine either from a roll or in the form of blanks. The feed-rolls 35 effect its travel between the cutting portions of the apparatus.

That We claim as our invention, and desire to secure by Letters Patent, is-

In a slotting-machine the combination of rotary knife-edged cutters, rotary blunt-edged cutters adapted to mesh therewith through out a portion of their revolution, a table ad jacent to said. cutters adapted to support blanks, a reciprocating feed-bar on said table adapted to feed the blanks one by one, an eccentric adapted to actuate said feed-bar, said eccentrio being adjustable on its shaft in such manner that the moment of feed relative to the rotation-of the cutters may be varied, substantially asdescribed.

In testimony whereof we have signed our names to thisspecification in the presence of two subscribing witnesses.

THOMAS MUNDY TRIPP. PERCY ISIDORE JACOBSON. HARRY DOBSON JAOOBSON. Witnesses:

ELEANOR MASON, CHAS. COVENTRY. 

